Mechanical pencil



FIG. 1 is a rear right perspective view of a mechanical pencil showing my new design;

FIG. 2 is a right side view of the pencil shown in FIG. 1 with an eraser extended from one end of the pencil and pencil lead extended from the other end of the pencil;

FIG. 3 is a front left perspective view of the pencil shown in FIG. 1;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a left side view thereof;

FIG. 8 is a front elevation view thereof; and,

FIG. 9 is a right side elevation view thereof. 

The ornamental design for a mechanical pencil, as shown and described. 